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For marketing & SEO agencies

Stripe recurring payments and subscription billing software for agencies

Built for the way you actually bill: monthly SEO retainers that auto-renew, paid-media management fees that scale with spend, and content subscriptions on cards instead of net-30 invoices.

650+
Agencies billing retainers
$48K
Avg monthly retainer book
12 days
Faster cash collection
Branded checkout links
PCI-DSS Level 1
app.moonclerk.com/retainers
Retainer book · AprilLive
$48,200/mo↑ +$12K
Northstar Outdoor
SEO retainer
$12K
Renews May 1Active
Rivermark Growth
Paid media mgmt
$18K
Renews May 1Active
Brightline Search
Content subscription
$6K
Renews May 1Active
Harbor Local SEO
Local SEO
$3.2K
Renews May 1Active
+ 8 more clientsSee all →
SEO shops, paid-media teams, and full-service growth agencies billing cleanly on MoonClerk

"We bill 40 SEO retainers a month. Card on file, auto-charges the 1st, dunning handled. My ops lead got her Sundays back and I stopped chasing AR."

Jordan Reyes · Founder, Rivermark Growth

"Paid-media fees scale with spend. MoonClerk lets us tier the retainer to ad budget - when a client doubles their Meta spend, the management fee bumps automatically."

Mika Chen · Ops, Brightline Search

"Clients pay through pay.northstar-seo.com, with our logo. They think we built the billing system. Net-30 invoices are gone from our agency."

Devon Park · Partner, Northstar Outdoor
01 · Branded checkout

Give clients a branded checkout for Stripe recurring payments.

SEO clients are skeptical buyers. A polished, branded payment page — on your own subdomain, with your logo and colors — signals the same operational maturity as your audits and reporting decks. MoonClerk stays invisible.

  • Custom subdomain per client (pay.youragency.com or billing.client.com)
  • Per-client logo, primary color, and confirmation copy
  • Your branding on receipts, dunning emails, and the client portal
  • Branded payment links and custom domains for client billing.
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Northstar Outdoor
pay.northstar-seo.com
Card
Name
Email
Pay $12,000 · May SEO retainer
Charged ✓
Harbor Local SEO
billing.harborlocal.com
Card
Name
Email
Pay $3,200 · May local SEO
Charged ✓
Two clients on one MoonClerk account — two totally different checkouts.
02 · Retainer operations

Use recurring billing software for SEO and media retainers.

Recurring billing on the 1st. Retry logic on failed charges. Pre-dunning before cards expire. Retainer threshold reminders when a client approaches the ad-spend tier or service level you track. MoonClerk handles the billing conversations you'd rather not have with a SaaS client mid-campaign.

  • Monthly, quarterly, or annual retainers with auto-renew
  • Smart retry recovers ~38% of failed charges silently
  • Pre-dunning emails 7 days before card expiry
  • Retainer threshold reminders for ad-spend tiers and service levels
Tour retainer tools →
billing.rivermark-growth.com
Active retainers
12
April MRR
$48,200
Rivermark GrowthPaid media · $18,000Active
Brightline SearchContent sub · $6,000Overage
Northstar OutdoorSEO retainer · $12,000Active
Harbor Local SEOLocal SEO · $3,200Active
Meridian FinancePerformance · $24,000Retrying
How it works

How MoonClerk handles Stripe recurring payments for agencies

MoonClerk gives agencies a no-code way to run Stripe recurring payments — no custom billing flow to build.

  • Connect Stripe, create a payment form for a retainer or subscription, choose the billing schedule
  • Send the branded link — the client signs up, Stripe processes the payment
  • MoonClerk runs the billing workflow: branded checkout, automatic renewals, reminder emails, failed-payment retries
  • Signed proposal → active retainer, faster — recurring billing software without custom development
1Connect Stripe2Create the retainer form3Choose the schedule4Send the branded link
03 · Plug into your agency stack

Connect subscription billing software to your agency stack.

Wire up HubSpot when a retainer starts. Sync paid invoices to Xero. Ping Slack when a card fails. Push the retainer into Notion so the SEO team knows it's live. MoonClerk fires every event in real time.

  • Webhooks for every payment, renewal, cancellation, and failure
  • Zapier connection to 9,000+ apps
  • REST API for custom pipelines and internal client dashboards
  • Live Google Sheets sync for agency ops dashboards
200 OK
// POST /webhooks/rivermark-growth { "event": "retainer.renewed", "client": "rivermark_growth", "engagement": "paid_media_mgmt", "amount": 1800000, // cents "period": "2026-05", "invoice_id": "inv_H9xL2kQ..." }
HubSpot
Xero
Slack
Zapier
Typical wiring: MoonClerk renews the retainer → fires retainer.renewed → Zapier creates an invoice in Xero, posts to #wins in Slack, updates the HubSpot deal stage.
Agency-grade features

Manage recurring invoicing software across multiple agency clients.

Multi-seat for your account team, role-based so finance and AMs see only what they need, audit-logged for the agency's own SOC reviews. When you're billing $500K+/month in retainers, the edges have to be sharp.

Team seats & roles

Owner, finance, account manager, read-only. Each role sees only what they need.

Multi-client dashboard

Every client rolls up into one book. Filter by client, service line, or status.

Audit log & SSO

Full audit trail of every change, export, and login. Google Workspace SSO available.

Custom fields & metadata

Tag every payment with client ID, campaign code, or service line.

CSV + Sheets sync

One-click CSV for your bookkeeper or live-sync to Google Sheets.

Priority support

Slack Connect or email with a real person, same-day responses.

Why MoonClerk

Why agencies choose MoonClerk as recurring billing software

Stripe processes payments — MoonClerk makes recurring invoicing and subscription billing easier to run for service businesses.

  • Branded payment pages your clients see as part of your agency
  • Automated recurring charges collected on a set schedule
  • Multi-account billing — manage activity across clients without engineering work
  • One workflow replaces patched-together invoice tools, payment links, and follow-up emails
  • Fits the full book: SEO retainers, paid media fees, onboarding deposits, monthly service subscriptions
Rivermark Growth
Practice
Paid media + SEO
Size
24 people · Toronto
Service mix
40% paid media · 35% SEO · 25% content
Customer story
"We bill 40 SEO retainers a month. Card on file, auto-charges the 1st, dunning handled. My ops lead got her Sundays back and I stopped chasing AR."
JR
Jordan ReyesFounder, Rivermark Growth
$580KMonthly retainer book
80%Less billing ops time
12 daysFaster cash collection
FAQ

Questions about Stripe recurring payments for agencies.

How is this different from a native Stripe checkout or Stripe Billing?

MoonClerk sits on top of Stripe. You keep the Stripe account, fees, and money movement; MoonClerk adds branded payment forms, no-code form building, retainer management, multi-client dashboards, and human support.

Can SEO and paid-media retainers tier by ad spend or service level?+

Yes. Retainers can be flat, tiered by service level, or tied to a usage variable like ad spend or campaign scope.

Can we charge our clients on our own agency domain?+

Yes. Every form can live on a custom subdomain such as pay.youragency.com or billing.clientname.com. We handle the TLS certificate; you set DNS once.

Do you support multi-seat teams and role-based access for account managers?+

Yes, on the Growth plan and up. Roles include Owner, Finance, Account Manager, and Read-only, with audit logging and Google Workspace SSO included.

Can we mark up MoonClerk and resell it to our clients?+

Not officially. MoonClerk is per-agency, and your clients do not need an account, but many agencies bundle the setup fee into onboarding scope.

Start using recurring invoice software with your agency brand.

Explore MoonClerk free. Invite your account team. See pricing or how payment processing works, then launch branded billing for your first SEO client in an afternoon.

Explore for free